Hi,
It is only possible to test for IR & RF signals if you make detectors for each to interface to the scope input. For IR that would mean an IR diode, load resistor & voltage source (+5V). For RF, an RF signal diode to rectify the signal would do (bit like a crystal set!).
You still would only be able to test for a simple output signal being present or not.
Regards,
PeterF.